63 A, 4-pole MCCB for line protection
Its breaking capacity hits 242 kA at 415 V and 440 V, dropping to 187 kA at 500 V and 3.7 kA at 690 V — the 690 V figure is the limit to watch when specifying for 690 V line-to-line systems. At 240 V it clears 330 kA.
Dimensions are 181 mm high, 140 mm wide, 86 mm deep — standard 4-pole MCCB footprint for a SENTRON 3VA2 frame. Communication function is built in, so it can integrate with a bus system for remote monitoring or trip-data retrieval without an external module. Ground-fault monitoring uses summation-current formation on L+N, which covers TN and TT systems without a separate GF relay.
Breaking capacity by voltage — selectivity planning
At 500 V it still holds 187 kA, which is enough for most industrial 480 V panels (typically 65–100 kA SCCR). For 690 V systems with high fault current, step up to a higher-frame 3VA breaker.